Paper-making machine.



Patented Feb. 25, I902.

H. PARKER.

PAPER MAKING MACHINE.

(Application filed June 7, 1901.1

(No Model.)

m: Norms Pznns co. mom-urns. WASNINGTDN. n. c.

UNITED STATES PATENT OFFICE.

HOWARD PARKER, OF BELLOWS FALLS, VERMONT.

PAPER-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 693,897, dated February 25, 1902 Application filed June '7, 1901. Serial No. 63,507. (No model.)

'To aZZ whom it may concern.-

Be it known that I, HOWARD PARKER, a citizen of the United States, and a resident of Bellows Falls, county of Windham, State of Vermont, have invented certain new and useful Improvements in' Paper Making Machinery, of which the following is a specification.

The drawing represents a perspective view of an apparatus embodying my invention.

It is common practice in paper making to suspend the pulp, which has been divided into Very fine particles, in some liquid, preferably water. The finely-divided particles of pulp in the solution are very buoyant, and it is essential that they be collected evenly and regularly, preferably into a sheet, for storage or shipment or further Working. In the tank which contains the pulp solution it is com mon practice to mount a revoluble roll having a pervious periphery. As this roll revolves the pulp by virtue of its buoyant character is deposited in a sheet of more or less thickness on this roll. It is important that as much as possible of the moisture and Water in the pulp as it forms into a layer on the roll be extracted; and my invention relates to a novel method of partially drying the pulp while it is on the aforementioned roll.

In the drawing, A denotes the tank, and B the roll mounted therein. As the roll rotates in the direction of the arrow when it enters the solution the pulp immediately begins to be deposited on its surface, and this deposition continues until the surface of the roll leaves the solution. The roll is divided into longitudinal compartments by the partitions C. In order to extract the water and moisture from the pulp as it forms on the roll, I provide a suction apparatus arranged to exert its force on the compartments in the roll as they leave the solution in the tank A. A preferred form of accomplishing this result is shown in the drawing, which consists of the stationary plate D, held in position by the angle-irons E, which are secured to the end of the tank, as at F. This plate has formed in it the recess G, to which a suction-pipe may be connected, as at H. The recess may be made of such size and shape as to communicate with any number of compartments desired, but preferably four, as shown in the drawing, the compartments as they pass from the solution being almost immediately subjected to the suction action and the moisture being thereby withdrawn from the pulp on the roll. Springs I, located between one flange paratus arranged to close the ends of part I only of the compartments as they pass said plate, substantially as described.

2. The combination in a machine of the class specified with the tank, the roll revolubly mounted therein, and compartments in the interior of said roll, of a stationary plate adapted to close the ends of one or more of the compartments, and springs for holding said plate in position, substantially as described.

HOWARD PARKER.

Witnesses:

HERBERT D. RYDER, J AS. H. WILLIAMS, J r. 

